﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.VisualBasic;
using System.Text.RegularExpressions;
using System.Web;

namespace CommonLibrary.Str
{
    /// <summary>
    /// 字符串操作 - 工具方法
    /// </summary>
    public sealed partial class Str
    {
        #region Empty(空字符串)

        /// <summary>
        /// 空字符串
        /// </summary>
        public static string Empty
        {
            get { return string.Empty; }
        }

        #endregion

        #region PinYin(获取汉字的拼音简码)
        /// <summary>
        /// 获取汉字的拼音简码，即首字母缩写,例如：中国,返回zg
        /// </summary>
        /// <param name="chineseText">汉字文本,例如： 中国</param>
        public static string PinYin(string chineseText)
        {
            if (string.IsNullOrWhiteSpace(chineseText))
                return string.Empty;
            var result = new StringBuilder();
            foreach (char text in chineseText)
                result.AppendFormat("{0}", ResolvePinYin(text));
            return result.ToString().ToLower();
        }

        /// <summary>
        /// 解析单个汉字的拼音简码
        /// </summary>
        /// <param name="text">单个汉字</param>
        private static string ResolvePinYin(char text)
        {
            byte[] charBytes = Encoding.Default.GetBytes(text.ToString());
            if (charBytes[0] <= 127)
                return text.ToString();
            var unicode = (ushort)(charBytes[0] * 256 + charBytes[1]);
            string pinYin = ResolvePinYinByCode(unicode);
            if (!string.IsNullOrWhiteSpace(pinYin))
                return pinYin;
            return ResolvePinYinByFile(text.ToString());
        }

        /// <summary>
        /// 使用字符编码方式获取拼音简码
        /// </summary>
        private static string ResolvePinYinByCode(ushort unicode)
        {
            if (unicode >= '\uB0A1' && unicode <= '\uB0C4')
                return "A";
            if (unicode >= '\uB0C5' && unicode <= '\uB2C0' && unicode != 45464)
                return "B";
            if (unicode >= '\uB2C1' && unicode <= '\uB4ED')
                return "C";
            if (unicode >= '\uB4EE' && unicode <= '\uB6E9')
                return "D";
            if (unicode >= '\uB6EA' && unicode <= '\uB7A1')
                return "E";
            if (unicode >= '\uB7A2' && unicode <= '\uB8C0')
                return "F";
            if (unicode >= '\uB8C1' && unicode <= '\uB9FD')
                return "G";
            if (unicode >= '\uB9FE' && unicode <= '\uBBF6')
                return "H";
            if (unicode >= '\uBBF7' && unicode <= '\uBFA5')
                return "J";
            if (unicode >= '\uBFA6' && unicode <= '\uC0AB')
                return "K";
            if (unicode >= '\uC0AC' && unicode <= '\uC2E7')
                return "L";
            if (unicode >= '\uC2E8' && unicode <= '\uC4C2')
                return "M";
            if (unicode >= '\uC4C3' && unicode <= '\uC5B5')
                return "N";
            if (unicode >= '\uC5B6' && unicode <= '\uC5BD')
                return "O";
            if (unicode >= '\uC5BE' && unicode <= '\uC6D9')
                return "P";
            if (unicode >= '\uC6DA' && unicode <= '\uC8BA')
                return "Q";
            if (unicode >= '\uC8BB' && unicode <= '\uC8F5')
                return "R";
            if (unicode >= '\uC8F6' && unicode <= '\uCBF9')
                return "S";
            if (unicode >= '\uCBFA' && unicode <= '\uCDD9')
                return "T";
            if (unicode >= '\uCDDA' && unicode <= '\uCEF3')
                return "W";
            if (unicode >= '\uCEF4' && unicode <= '\uD188')
                return "X";
            if (unicode >= '\uD1B9' && unicode <= '\uD4D0')
                return "Y";
            if (unicode >= '\uD4D1' && unicode <= '\uD7F9')
                return "Z";
            return string.Empty;
        }

        /// <summary>
        /// 从拼音简码文件获取
        /// </summary>
        /// <param name="text">单个汉字</param>
        private static string ResolvePinYinByFile(string text)
        {
            int index = Const.ChinesePinYin.IndexOf(text, StringComparison.Ordinal);
            if (index < 0)
                return string.Empty;
            return Const.ChinesePinYin.Substring(index + 1, 1);
        }

        private static int[] pyValue = new int[]
               {
                -20319,-20317,-20304,-20295,-20292,-20283,-20265,-20257,-20242,-20230,-20051,-20036,
                -20032,-20026,-20002,-19990,-19986,-19982,-19976,-19805,-19784,-19775,-19774,-19763,
                -19756,-19751,-19746,-19741,-19739,-19728,-19725,-19715,-19540,-19531,-19525,-19515,
                -19500,-19484,-19479,-19467,-19289,-19288,-19281,-19275,-19270,-19263,-19261,-19249,
                -19243,-19242,-19238,-19235,-19227,-19224,-19218,-19212,-19038,-19023,-19018,-19006,
                -19003,-18996,-18977,-18961,-18952,-18783,-18774,-18773,-18763,-18756,-18741,-18735,
                -18731,-18722,-18710,-18697,-18696,-18526,-18518,-18501,-18490,-18478,-18463,-18448,
                -18447,-18446,-18239,-18237,-18231,-18220,-18211,-18201,-18184,-18183, -18181,-18012,
                -17997,-17988,-17970,-17964,-17961,-17950,-17947,-17931,-17928,-17922,-17759,-17752,
                -17733,-17730,-17721,-17703,-17701,-17697,-17692,-17683,-17676,-17496,-17487,-17482,
                -17468,-17454,-17433,-17427,-17417,-17202,-17185,-16983,-16970,-16942,-16915,-16733,
                -16708,-16706,-16689,-16664,-16657,-16647,-16474,-16470,-16465,-16459,-16452,-16448,
                -16433,-16429,-16427,-16423,-16419,-16412,-16407,-16403,-16401,-16393,-16220,-16216,
                -16212,-16205,-16202,-16187,-16180,-16171,-16169,-16158,-16155,-15959,-15958,-15944,
                -15933,-15920,-15915,-15903,-15889,-15878,-15707,-15701,-15681,-15667,-15661,-15659,
                -15652,-15640,-15631,-15625,-15454,-15448,-15436,-15435,-15419,-15416,-15408,-15394,
                -15385,-15377,-15375,-15369,-15363,-15362,-15183,-15180,-15165,-15158,-15153,-15150,
                -15149,-15144,-15143,-15141,-15140,-15139,-15128,-15121,-15119,-15117,-15110,-15109,
                -14941,-14937,-14933,-14930,-14929,-14928,-14926,-14922,-14921,-14914,-14908,-14902,
                -14894,-14889,-14882,-14873,-14871,-14857,-14678,-14674,-14670,-14668,-14663,-14654,
                -14645,-14630,-14594,-14429,-14407,-14399,-14384,-14379,-14368,-14355,-14353,-14345,
                -14170,-14159,-14151,-14149,-14145,-14140,-14137,-14135,-14125,-14123,-14122,-14112,
                -14109,-14099,-14097,-14094,-14092,-14090,-14087,-14083,-13917,-13914,-13910,-13907,
                -13906,-13905,-13896,-13894,-13878,-13870,-13859,-13847,-13831,-13658,-13611,-13601,
                -13406,-13404,-13400,-13398,-13395,-13391,-13387,-13383,-13367,-13359,-13356,-13343,
                -13340,-13329,-13326,-13318,-13147,-13138,-13120,-13107,-13096,-13095,-13091,-13076,
                -13068,-13063,-13060,-12888,-12875,-12871,-12860,-12858,-12852,-12849,-12838,-12831,
                -12829,-12812,-12802,-12607,-12597,-12594,-12585,-12556,-12359,-12346,-12320,-12300,
                -12120,-12099,-12089,-12074,-12067,-12058,-12039,-11867,-11861,-11847,-11831,-11798,
                -11781,-11604,-11589,-11536,-11358,-11340,-11339,-11324,-11303,-11097,-11077,-11067,
                -11055,-11052,-11045,-11041,-11038,-11024,-11020,-11019,-11018,-11014,-10838,-10832,
                -10815,-10800,-10790,-10780,-10764,-10587,-10544,-10533,-10519,-10331,-10329,-10328,
                -10322,-10315,-10309,-10307,-10296,-10281,-10274,-10270,-10262,-10260,-10256,-10254
               };

        private static string[] pyName = new string[]
                {
                "A","Ai","An","Ang","Ao","Ba","Bai","Ban","Bang","Bao","Bei","Ben",
                "Beng","Bi","Bian","Biao","Bie","Bin","Bing","Bo","Bu","Ba","Cai","Can",
                "Cang","Cao","Ce","Ceng","Cha","Chai","Chan","Chang","Chao","Che","Chen","Cheng",
                "Chi","Chong","Chou","Chu","Chuai","Chuan","Chuang","Chui","Chun","Chuo","Ci","Cong",
                "Cou","Cu","Cuan","Cui","Cun","Cuo","Da","Dai","Dan","Dang","Dao","De",
                "Deng","Di","Dian","Diao","Die","Ding","Diu","Dong","Dou","Du","Duan","Dui",
                "Dun","Duo","E","En","Er","Fa","Fan","Fang","Fei","Fen","Feng","Fo",
                "Fou","Fu","Ga","Gai","Gan","Gang","Gao","Ge","Gei","Gen","Geng","Gong",
                "Gou","Gu","Gua","Guai","Guan","Guang","Gui","Gun","Guo","Ha","Hai","Han",
                "Hang","Hao","He","Hei","Hen","Heng","Hong","Hou","Hu","Hua","Huai","Huan",
                "Huang","Hui","Hun","Huo","Ji","Jia","Jian","Jiang","Jiao","Jie","Jin","Jing",
                "Jiong","Jiu","Ju","Juan","Jue","Jun","Ka","Kai","Kan","Kang","Kao","Ke",
                "Ken","Keng","Kong","Kou","Ku","Kua","Kuai","Kuan","Kuang","Kui","Kun","Kuo",
                "La","Lai","Lan","Lang","Lao","Le","Lei","Leng","Li","Lia","Lian","Liang",
                "Liao","Lie","Lin","Ling","Liu","Long","Lou","Lu","Lv","Luan","Lue","Lun",
                "Luo","Ma","Mai","Man","Mang","Mao","Me","Mei","Men","Meng","Mi","Mian",
                "Miao","Mie","Min","Ming","Miu","Mo","Mou","Mu","Na","Nai","Nan","Nang",
                "Nao","Ne","Nei","Nen","Neng","Ni","Nian","Niang","Niao","Nie","Nin","Ning",
                "Niu","Nong","Nu","Nv","Nuan","Nue","Nuo","O","Ou","Pa","Pai","Pan",
                "Pang","Pao","Pei","Pen","Peng","Pi","Pian","Piao","Pie","Pin","Ping","Po",
                "Pu","Qi","Qia","Qian","Qiang","Qiao","Qie","Qin","Qing","Qiong","Qiu","Qu",
                "Quan","Que","Qun","Ran","Rang","Rao","Re","Ren","Reng","Ri","Rong","Rou",
                "Ru","Ruan","Rui","Run","Ruo","Sa","Sai","San","Sang","Sao","Se","Sen",
                "Seng","Sha","Shai","Shan","Shang","Shao","She","Shen","Sheng","Shi","Shou","Shu",
                "Shua","Shuai","Shuan","Shuang","Shui","Shun","Shuo","Si","Song","Sou","Su","Suan",
                "Sui","Sun","Suo","Ta","Tai","Tan","Tang","Tao","Te","Teng","Ti","Tian",
                "Tiao","Tie","Ting","Tong","Tou","Tu","Tuan","Tui","Tun","Tuo","Wa","Wai",
                "Wan","Wang","Wei","Wen","Weng","Wo","Wu","Xi","Xia","Xian","Xiang","Xiao",
                "Xie","Xin","Xing","Xiong","Xiu","Xu","Xuan","Xue","Xun","Ya","Yan","Yang",
                "Yao","Ye","Yi","Yin","Ying","Yo","Yong","You","Yu","Yuan","Yue","Yun",
                "Za", "Zai","Zan","Zang","Zao","Ze","Zei","Zen","Zeng","Zha","Zhai","Zhan",
                "Zhang","Zhao","Zhe","Zhen","Zheng","Zhi","Zhong","Zhou","Zhu","Zhua","Zhuai","Zhuan",
                "Zhuang","Zhui","Zhun","Zhuo","Zi","Zong","Zou","Zu","Zuan","Zui","Zun","Zuo"
                };

        /// <summary>
        /// 把汉字转换成拼音(全拼)
        /// </summary>
        /// <param name="hzString">汉字字符串</param>
        /// <returns>转换后的拼音(全拼)字符串</returns>
        public static string ConvertPinYin(string hzString)
        {
            // 匹配中文字符
            Regex regex = new Regex("^[\u4e00-\u9fa5]$");
            byte[] array = new byte[2];
            string pyString = "";
            int chrAsc = 0;
            int i1 = 0;
            int i2 = 0;
            char[] noWChar = hzString.ToCharArray();

            for (int j = 0; j < noWChar.Length; j++)
            {
                // 中文字符
                if (regex.IsMatch(noWChar[j].ToString()))
                {
                    array = System.Text.Encoding.Default.GetBytes(noWChar[j].ToString());
                    i1 = (short)(array[0]);
                    i2 = (short)(array[1]);
                    chrAsc = i1 * 256 + i2 - 65536;
                    if (chrAsc > 0 && chrAsc < 160)
                    {
                        pyString += noWChar[j];
                    }
                    else
                    {
                        // 修正部分文字
                        if (chrAsc == -9254) pyString += "Zhen";// 修正“圳”字
                        else
                        {
                            for (int i = (pyValue.Length - 1); i >= 0; i--)
                            {
                                if (pyValue[i] <= chrAsc)
                                {
                                    pyString += pyName[i];
                                    break;
                                }
                            }
                        }
                    }
                }
                // 非中文字符
                else
                {
                    pyString += noWChar[j].ToString();
                }
            }
            return pyString;
        }
        #endregion

        #region Splice(拼接集合元素)

        /// <summary>
        /// 拼接集合元素
        /// </summary>
        /// <typeparam name="T">集合元素类型</typeparam>
        /// <param name="list">集合</param>
        /// <param name="quotes">引号，默认不带引号，范例：单引号 "'"</param>
        /// <param name="separator">分隔符，默认使用逗号分隔</param>
        public static string Splice<T>(IEnumerable<T> list, string quotes = "", string separator = ",")
        {
            if (list == null)
                return string.Empty;
            var result = new StringBuilder();
            foreach (var each in list)
                result.AppendFormat("{0}{1}{0}{2}", quotes, each, separator);
            return result.ToString().TrimEnd(separator.ToCharArray());
        }

        #endregion

        #region FirstUpper(将值的首字母大写)

        /// <summary>
        /// 将值的首字母大写
        /// </summary>
        /// <param name="value">值</param>
        public static string FirstUpper(string value)
        {
            string firstChar = value.Substring(0, 1).ToUpper();
            return firstChar + value.Substring(1, value.Length - 1);
        }

        #endregion

        #region ToCamel(将字符串转成驼峰形式)

        /// <summary>
        /// 将字符串转成驼峰形式
        /// </summary>
        /// <param name="value">原始字符串</param>
        public static string ToCamel(string value)
        {
            return FirstUpper(value.ToLower());
        }

        #endregion

        #region ContainsChinese(是否包含中文)

        /// <summary>
        /// 是否包含中文
        /// </summary>
        /// <param name="text">文本</param>
        public static bool ContainsChinese(string text)
        {
            const string pattern = "[\u4e00-\u9fa5]+";
            return Regex.IsMatch(text, pattern);
        }

        #endregion

        #region ContainsNumber(是否包含数字)

        /// <summary>
        /// 是否包含数字
        /// </summary>
        /// <param name="text">文本</param>
        public static bool ContainsNumber(string text)
        {
            const string pattern = "[0-9]+";
            return Regex.IsMatch(text, pattern);
        }

        #endregion

        #region Distinct(去除重复)

        /// <summary>
        /// 去除重复
        /// </summary>
        /// <param name="value">值，范例1："5555",返回"5",范例2："4545",返回"45"</param>
        public static string Distinct(string value)
        {
            var array = value.ToCharArray();
            return new string(array.Distinct().ToArray());
        }

        #endregion

        #region Truncate(截断字符串)

        /// <summary>
        /// 截断字符串
        /// </summary>
        /// <param name="text">文本</param>
        /// <param name="length">返回长度</param>
        /// <param name="endCharCount">添加结束符号的个数，默认0，不添加</param>
        /// <param name="endChar">结束符号，默认为省略号</param>
        public static string Truncate(string text, int length, int endCharCount = 0, string endChar = ".")
        {
            if (string.IsNullOrWhiteSpace(text))
                return string.Empty;
            if (text.Length < length)
                return text;
            return text.Substring(0, length) + GetEndString(endCharCount, endChar);
        }

        /// <summary>
        /// 获取结束字符串
        /// </summary>
        private static string GetEndString(int endCharCount, string endChar)
        {
            StringBuilder result = new StringBuilder();
            for (int i = 0; i < endCharCount; i++)
                result.Append(endChar);
            return result.ToString();
        }

        #endregion

        #region ToSimplifiedChinese(转换为简体中文)

        /// <summary>
        /// 转换为简体中文
        /// </summary>
        /// <param name="text">繁体中文</param>
        //public static string ToSimplifiedChinese(string text)
        //{
        //    return Strings.StrConv(text, VbStrConv.SimplifiedChinese);
        //}

        #endregion

        #region ToSimplifiedChinese(转换为繁体中文)

        /// <summary>
        /// 转换为繁体中文
        /// </summary>
        /// <param name="text">简体中文</param>
        //public static string ToTraditionalChinese(string text)
        //{
        //    return Strings.StrConv(text, VbStrConv.TraditionalChinese);
        //}

        #endregion

        #region Unique(获取全局唯一值)

        /// <summary>
        /// 获取全局唯一值
        /// </summary>
        public static string Unique()
        {
            return Guid.NewGuid().ToString().Replace("-", "");
        }

        #endregion

        #region GetLastProperty(获取最后一个属性)

        /// <summary>
        /// 获取最后一个属性
        /// </summary>
        /// <param name="propertyName">属性名，范例，A.B.C,返回"C"</param>
        public static string GetLastProperty(string propertyName)
        {
            if (propertyName.Length == 0 || propertyName == null) return string.Empty;
            var lastIndex = propertyName.LastIndexOf(".", StringComparison.Ordinal) + 1;
            return propertyName.Substring(lastIndex);
        }

        #endregion
    }
}
